Abstract
The emergence of the Internet of Vehicles (IoV) has enhanced the comfort and safety of driving by right of the intelligent transportation system, and communication among devices and infrastructures. However, the messages exchanged between them are mainly through wireless networks, which also makes the devices of IoV vulnerable. In an effort to cope with this problem, many authenticated key exchange protocols tailored for the IoV have been proposed. However, the existing similar protocols are either insufficiently secure or suffer from efficiency issues. Therefore, we propose a new security property named non-full key escrow. Furthermore, we put forward a non-full key escrow authenticated key exchange protocol tailored for V2V communication, which can resist the ephemeral key leakage attack. Then, we perform the security proof in the eCK model and carry out a performance analysis through a series of experiments. The results provide evidence that the proposed protocol is superior in terms of efficiency while compared with existing authenticated key exchange protocols for IoV.
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